[sane-devel] A very fast scanner supported by SANE (maybe Epson GT2500?)

[Wolfram Heider]

Speed is somewhat slower in ADF.

Yes, if you put your book on the scanner glass, it takes more or less 4
seconds to scan the page.

Wolfram Heider

On Tue, 05 Feb 2008 16:02:34 +0100, Alex Bernier <alex.bernier at free.fr>
wrote:

> Hello,
>
>   Thank you for your answer.
>
> Is the speed needed to scan an A4 page with the ADF equal to the speed
> needed to scan an A4 page without the ADF ?
> (I ask this because on the Epson website speeds are given using ADF and I
> suspect the GT2500 to be very fast with ADF but slower without...).
> If I put my book on the scanner glass, it would take 4 seconds to scan  
> the
> page, right ?
>
> Best regards,
>
> Alex Bernier
>
>
> On Tue, Feb 05, 2008 at 03:52:02PM +0100, Wolfram Heider wrote:
>> Alex,
>>
>> I have a GT-2500 here on my desk. It's a pretty solid office machine
>> working reliably with the iscan and the xsane frontend. However, speed  
>> is
>> slow with the default settings so one has to make sure that the speed
>> button is activated.
>> Some features like the ADF-duplex scanning aren't working with the
>> graphical frontends but just from the commandline (scanadf).
>>
>> As to the scanning speed: 27 PPM seems to me to be the usual  
>> advertisement
>> ballyhoo, anyway the GT-2500 makes in b/w scanning with 300 dpi a page  
>> in
>> roughly 4 seconds giving 15 PPM.
>>
>> However the GT-2500 comes with an ADF-unit, and if you don't need it you
>> would have to pay for something useless. Although the GT-2500 is quite
>> inexpensive compared to other machines of its class and quality its  
>> price
>> is clearly beyond the normal customer's budget (and the ADF-unit makes
>> pretty a portion of it). So you may look for a pure flatbed scanner,  
>> Epson
>> scanners are in any case a good choice if speed is the criterion.
>>
>> Best regards
>> Wolfram Heider
>>
>>
>> On Tue, 05 Feb 2008 13:54:43 +0100, Alex Bernier <alex.bernier at free.fr>
>> wrote:
>>
>>> Hello,
>>>
>>>   I don't know if it is the right place for this question...
>>> I'm blind and I want a very fast scanner supported by SANE, mainly to  
>>> scan
>>> books (it should be very fast for 300-DPI black and white scanning).
>>> It's not easy to find information about performances of scanners. On  
>>> the
>>> Epson
>>> website, I found the GT2500 which can scan 27 PPM using an ADF. But I
>>> don't
>>> want to use the ADF... Because I want to scan books, it's more useful  
>>> for
>>> me to know how fast the scanner is when using the "flatbed" mode. If
>>> someone
>>> has an Epson GT2500, I would really apreciate if he/she can give me  
>>> some
>>> information about the scanning speed.
>>> Or if someone knows about an other very fast scanner, suggestions  
>>> would be
>>> apreciated.
>>>
>>> For the moment, I own an Epson Perfection 1640SU. It scans a page in 17
>>> seconds, but it is old and I think there is better models now...
>>>
>>> Regards,
>>>
>>> Alex Bernier
>>>
>>>
>>
>>
>>
>